The Russos, who already have experience in the MCU as the directors of Captain America: The Winter Soldier and Captain America: Civil War, are set to direct both Infinity War and the untitled fourth Avengers movie, which will film back-to-back, according toCollider.

"I can't get into too much detail about who we're introducing, but these two movies are intended to be the culmination of everything that has happened in the MCU since the very first Iron Man movie," Anthony Russo told IGNabout the films in August. "In being a culmination, these movies are in some ways going to be an end to certain things, and in some ways, they're going to be the beginning of certain things."

This isn't the first photo the Russo brothers have shared from the set. They posted a picture a few months ago showing Thanos actor Josh Brolin in motion capture gear, captioning the photo, "Rehearsal."